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On February 1st, STMicroelectronics expanded its family of dual-channel high-speed digital signal isolators, bringing more flexibility to designers to optimize circuit board layout.The new STISO620 has two co-directional channels with all digital inputs on one side of the isolation barrier and all digital outputs on the other side. In addition to the forward dual channel STISO620, ST's digital isolator lineup also includes the reverse dual channel (one channel in each direction) STISO621 and

(1) Resistance method: By measuring the forward and reverse resistance of each pin of the integrated circuit to the ground, and comparing with the integrated circuit with good device, a judgment can be made. If the peripheral components are not damaged, the integrated circuit may be damaged.(2) Voltage method: measure the dynamic and static voltages of the pins of the integrated circuit to the ground, and compare them with the reference voltage provided. If the pin voltage is quite different and

1)Single in-lineThere are many specific shapes of the package of the single in-line integrated circuit, but there is a more obvious mark to indicate the position of the first pin, and it is ordered from left to right.If there is no first pin mark, turn the side with the model number towards you, and the pins face down. The leftmost end is the first pin, followed by each pin in turn2)Dual in-lineThe dual-in-line integrated circuit also has a more obvious mark to indicate the position of the first

The main parametersof ICs:1,Maximum Output Power: Refers to integrated circuits with power output requirements. When the signal distortion is a certain value, the power of the electrical signal output by the output pin of the integrated circuit2,Quiescent Operating Current: Refers to the magnitude of the current in the power supply pin loop without inputting a signal to the integrated circuit. This parameter plays a certain role in judging the quality of the integrated circuit.3,Gain: Refers to

Integrated circuits are widely used in various electronic circuits, especially in various special-purpose, high-performance integrated circuits, which are used more and more.•According to the processing signal, integrated circuits can be divided into analog integrated circuits and digital integrated circuits•According to the manufacturing process, integrated circuits can be divided into semiconductor integrated circuits and thin film integrated circuits•According to the conduct